Saturation test for a Current Transformer

[Varshini Guduru]

I am reviewing a commissioning report from one of our sub contractors for a Solar Canopy project . There is a contract requirement to perform Saturation tests for all the Current and Voltage Transformers used. So, my question is - the design proposes usage of 1200:5 amps CT for the meter applications and the system voltage is 480V . Having said that , for a Low Voltage system like this - is it required to perform saturation tests on CT or PT . Image attached for reference ? Please let me know . Thank you .

 

[xformer]

I am reviewing a commissioning report from one of our sub contractors for a Solar Canopy project . There is a contract requirement to perform Saturation tests for all the Current and Voltage Transformers used. So, my question is - the design proposes usage of 1200:5 amps CT for the meter applications and the system voltage is 480V . Having said that , for a Low Voltage system like this - is it required to perform saturation tests on CT or PT . Image attached for reference ? Please let me know . Thank you .

In my humble opinion, this is not a NEC question. Rather a specification for the contract.

 

[David Castor]

It's not required by the NEC. These tests are normally performed at the factory and test reports provided as submittals.